A convenient two-step synthesis of 6-methylenesubstituted-4-trichloromethyl-2-methylsulfanyl pyrimidines |
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| Authors: | Nilo Zanatta Darlene C Flores Claudia C Madruga Alex FC Flores Helio G Bonacorso Marcos AP Martins |
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| Institution: | Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97.105-900, Santa Maria, RS, Brazil |
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| Abstract: | This work reports a two-step synthetic strategy to obtain a series of 6-methylenesubstituted-4-trichloromethyl-2-methylsulfanylpyrimidines from the cyclization of 5-bromo-4-methoxy-1,1,1-trichloro-pent-3-en-2-ones with 2-methyl-2-pseudothiourea sulfate, followed by nucleophilic substitution of 6-bromomethyl-4-trichloromethyl-2-methylsulfanylpyrimidine with a series of nucleophiles. Alternative strategies to obtain 6-halomethyl-4-trichlorofluoro]methyl-2-methylsulfanyl pyrimidines have been addressed. |
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| Keywords: | Pyrimidines Enones Halogenated heterocycles |
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